Police are on the scene of a murder-suicide at Lehigh Valley Hospital in Allentown, Pa., Tuesday, March 19, 2013. An elderly man shot and killed his 83-year-old wife in a hospice unit at the hospital, then turned the gun on himself, authorities said. (AP Photo/The Express-Times, Matt Smith)

Police are on the scene of a murder-suicide at Lehigh Valley...

Police are on the scene of a murder-suicide at Lehigh Valley Hospital in Allentown, Pa., Tuesday, March 19, 2013. An elderly man shot and killed his 83-year-old wife in a hospice unit at the hospital, then turned the gun on himself, authorities said. (AP Photo/The Express-Times, Matt Smith)

Police are on the scene of a murder-suicide at Lehigh Valley...

Police are on the scene of a murder-suicide at Lehigh Valley Hospital in Allentown, Pa., Tuesday, March 19, 2013. An elderly man shot and killed his 83-year-old wife in a hospice unit at the hospital, then turned the gun on himself, authorities said. (AP Photo/The Express-Times, Matt Smith)

Police are on the scene of a murder-suicide at Lehigh Valley...

Police are on the scene of a murder-suicide at Lehigh Valley Hospital in Allentown, Pa., Tuesday, March 19, 2013. An elderly man shot and killed his 83-year-old wife in a hospice unit at the hospital, then turned the gun on himself, authorities said. (AP Photo/The Express-Times, Matt Smith)